THE ONLY THING THAT CAN SAVE THE WORLD
There is a genre of historical fiction writing called Alternate or What-If History. Its purpose is to focus on one of history's critical forks in the road, and by speculating on what might have happened had a different fork been taken (e.g., if Lee had won at Gettysburg or if Booth had missed) it can advance our understanding of what did happen.
It can only be useful in that regard if it is to be anything other than pure entertainment and idle speculation - for history cannot be changed. What did happen, happened, and not something else. History is stochastic, a series of uniquely unrepeatable events.
Nonetheless, what-if alternate histories do help us realize that some events are more important than others, suddenly determining an outcome affecting the fate of very large numbers of people for generations to come.
Ideally, they could be forward-looking, helping us distinguish between inconsequential forks we're facing and those we need to pay attention to - most especially enabling us to see when we're headed for a major Fork of History, one that future historians will be writing about.
Like right now. A Fork that will determine the fate of the world, how the lives of billions of people will turn out. A Fork that will be endless fodder for future what-if histories. A Fork of History down one path of which lies doom, down the other lies liberation.
We're there, folks. It's time to choose. There's only one thing that can extricate the world from the calamity descending upon it.

